/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package org.jboss.netty.channel.socket;

import org.jboss.netty.channel.ChannelException;
import org.jboss.netty.channel.DefaultChannelConfig;
import org.jboss.netty.util.internal.ConversionUtil;

import java.net.Socket;
import java.net.SocketException;

/**
 * The default {@link SocketChannelConfig} implementation.
 */
public class DefaultSocketChannelConfig extends DefaultChannelConfig implements SocketChannelConfig {

	private final Socket socket;

	/**
	 * Creates a new instance.
	 */
	public DefaultSocketChannelConfig(Socket socket) {
		if (socket == null) {
			throw new NullPointerException("socket");
		}
		this.socket = socket;
	}

	@Override
	public boolean setOption(String key, Object value) {
		if (super.setOption(key, value)) {
			return true;
		}

		if ("receiveBufferSize".equals(key)) {
			setReceiveBufferSize(ConversionUtil.toInt(value));
		} else if ("sendBufferSize".equals(key)) {
			setSendBufferSize(ConversionUtil.toInt(value));
		} else if ("tcpNoDelay".equals(key)) {
			setTcpNoDelay(ConversionUtil.toBoolean(value));
		} else if ("keepAlive".equals(key)) {
			setKeepAlive(ConversionUtil.toBoolean(value));
		} else if ("reuseAddress".equals(key)) {
			setReuseAddress(ConversionUtil.toBoolean(value));
		} else if ("soLinger".equals(key)) {
			setSoLinger(ConversionUtil.toInt(value));
		} else if ("trafficClass".equals(key)) {
			setTrafficClass(ConversionUtil.toInt(value));
		} else {
			return false;
		}
		return true;
	}

	public int getReceiveBufferSize() {
		try {
			return socket.getReceiveBufferSize();
		} catch (SocketException e) {
			throw new ChannelException(e);
		}
	}

	public int getSendBufferSize() {
		try {
			return socket.getSendBufferSize();
		} catch (SocketException e) {
			throw new ChannelException(e);
		}
	}

	public int getSoLinger() {
		try {
			return socket.getSoLinger();
		} catch (SocketException e) {
			throw new ChannelException(e);
		}
	}

	public int getTrafficClass() {
		try {
			return socket.getTrafficClass();
		} catch (SocketException e) {
			throw new ChannelException(e);
		}
	}

	public boolean isKeepAlive() {
		try {
			return socket.getKeepAlive();
		} catch (SocketException e) {
			throw new ChannelException(e);
		}
	}

	public boolean isReuseAddress() {
		try {
			return socket.getReuseAddress();
		} catch (SocketException e) {
			throw new ChannelException(e);
		}
	}

	public boolean isTcpNoDelay() {
		try {
			return socket.getTcpNoDelay();
		} catch (SocketException e) {
			throw new ChannelException(e);
		}
	}

	public void setKeepAlive(boolean keepAlive) {
		try {
			socket.setKeepAlive(keepAlive);
		} catch (SocketException e) {
			throw new ChannelException(e);
		}
	}

	public void setPerformancePreferences(int connectionTime, int latency, int bandwidth) {
		socket.setPerformancePreferences(connectionTime, latency, bandwidth);
	}

	public void setReceiveBufferSize(int receiveBufferSize) {
		try {
			socket.setReceiveBufferSize(receiveBufferSize);
		} catch (SocketException e) {
			throw new ChannelException(e);
		}
	}

	public void setReuseAddress(boolean reuseAddress) {
		try {
			socket.setReuseAddress(reuseAddress);
		} catch (SocketException e) {
			throw new ChannelException(e);
		}
	}

	public void setSendBufferSize(int sendBufferSize) {
		try {
			socket.setSendBufferSize(sendBufferSize);
		} catch (SocketException e) {
			throw new ChannelException(e);
		}
	}

	public void setSoLinger(int soLinger) {
		try {
			if (soLinger < 0) {
				socket.setSoLinger(false, 0);
			} else {
				socket.setSoLinger(true, soLinger);
			}
		} catch (SocketException e) {
			throw new ChannelException(e);
		}
	}

	public void setTcpNoDelay(boolean tcpNoDelay) {
		try {
			socket.setTcpNoDelay(tcpNoDelay);
		} catch (SocketException e) {
			throw new ChannelException(e);
		}
	}

	public void setTrafficClass(int trafficClass) {
		try {
			socket.setTrafficClass(trafficClass);
		} catch (SocketException e) {
			throw new ChannelException(e);
		}
	}
}
